Table 1.
Erythrocyte indices in the study subjects (Aa) and in those with RDW <14.0% (Bb)
| RBC(×106/μL) | Hb (g/dL) | Hct (%) | MCV (fL) | MCH (pg) | MCHC(%) | RDW (%) | |||
|---|---|---|---|---|---|---|---|---|---|
| Mean | Mean | Mean | Mean | Mean | Mean | Mean | |||
| N | ± 2SD | ± 2SD | ± 2SD | ± 2SD | ± 2SD | ± 2SD | ± 2SD | ||
| A | All | 1,040 | 5.3 | 14 | 42.9 | 82.1 | 26.8 | 32.6 | 12.6 |
| 4.0-6.5 | 10.5-17.5 | 33.2-52.7 | 66.6-97.6 | 20.6-33.0 | 30.4-34.8 | 9.2-15.9 | |||
| M | 520 | 5.6 | 15.3 | 46.5 | 83.6 | 27.5 | 32.8 | 12.1 | |
| 4.5-6.7 | 13.0-17.6 | 40.5-53.0 | 70.1-97.1 | 22.0-33.0 | 30.7-35.0 | 10.3-13.9 | |||
| F | 520 | 4.9 | 12.8 | 39.4 | 80.6 | 26.1 | 32.4 | 13.1 | |
| 4.0-5.9 | 10.2-15.4 | 32.5-46.2 | 63.8-97.3 | 19.5-32.7 | 30.2-34.6 | 9.0-17.2 | |||
| B | All | 896 | 5.3 | 14.4 | 43.8 | 83.4 | 27.3 | 32.3 | 12.1 |
| 4.1-6.5 | 11.4-17.3 | 35.4-52.2 | 70.2-96.7 | 22.0-32.7 | 30.7-34.8 | 10.5-13.7 | |||
| M | 495 | 5.6 | 15.3 | 46.6 | 83.8 | 27.6 | 32.8 | 12.0 | |
| 4.5-6.7 | 13.1-17.4 | 40.4-52.8 | 70.2-96.7 | 22.2-32.9 | 30.7-35.0 | 10.6-13.4 | |||
| F | 401 | 4.9 | 13.2 | 40.4 | 82.9 | 27.1 | 32.6 | 12.2 | |
| 4.0-5.8 | 11.3-15.1 | 35.2-45.6 | 69.6-96.3 | 21.7-32.5 | 30.7-34.6 | 10.5-14.0 | |||
aSubjects with abnormal hemoglobin electrophoresis (n = 39) were excluded.
bSubjects with RDW >14.0% (n = 136, Table 2) were presumed to have iron deficiency and were excluded from estimating the reference intervals. Erroneous or incomplete data (n = 8) were also exclude from estimating the reference intervals.